PIC24FV16KA301-I/P Microchip Technology, PIC24FV16KA301-I/P Datasheet - Page 64

• Manufacturer Part Number: PIC24FV16KA301-I/P
• Description: MCU 16KB FLASH 2KB RAM 20-PDIP
• Manufacturer: Microchip Technology

Specifications of PIC24FV16KA301-I/P

• Controller Family/series: PIC24F
• Core Size: 16bit
• No. Of I/o's: 17
• Program Memory Size: 16KB
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 2KB
• Cpu Speed: 32MHz
• Oscillator Type: External, Internal
• Rohs Compliant: Yes
• Processor Series: PIC24FV
• Core: PIC
• Data Bus Width: 16 bit
• Program Memory Type: Flash
• Data Ram Size: 2 KB
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: PDIP-20
• Development Tools By Supplier: MPLAB IDE Software
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC24FV32KA304 FAMILY
EXAMPLE 5-4:
EXAMPLE 5-5:
EXAMPLE 5-6:
DS39995B-page 64
// C example using MPLAB C30
// C example using MPLAB C30
asm("DISI #5");
__builtin_write_NVM();
#define NUM_INSTRUCTION_PER_ROW 64
unsigned int offset;
unsigned int i;
unsigned int progData[2*NUM_INSTRUCTION_PER_ROW];
//Set up NVMCON for row programming
NVMCON = 0x4001;
//Set up pointer to the first memory location to be written
TBLPAG = __builtin_tblpage(&progAddr);
offset = &progAddr & 0xFFFF;
//Perform TBLWT instructions to write necessary number of latches
for(i=0; i < 2*NUM_INSTRUCTION_PER_ROW; i++)
{
int __attribute__ ((space(auto_psv))) progAddr = &progAddr;// Global variable located in Pgm Memory
}
__builtin_tblwtl(offset, progData[i++]);
__builtin_tblwth(offset, progData[i]);
offset = offset + 2;
DISI
MOV
MOV
MOV
MOV
BSET
NOP
NOP
BTSC
BRA
#5
#0x55, W0
W0, NVMKEY
#0xAA, W1
W1, NVMKEY
NVMCON, #WR
NVMCON, #15
$-2
LOADING THE WRITE BUFFERS – ‘C’ LANGUAGE CODE
INITIATING A PROGRAMMING SEQUENCE – ASSEMBLY LANGUAGE CODE
INITIATING A PROGRAMMING SEQUENCE – ‘C’ LANGUAGE CODE
// Block all interrupts for next 5 instructions
// Perform unlock sequence and set WR
; Block all interrupts
; Write the 55 key
;
; Write the AA key
; Start the erase sequence
; 2 NOPs required after setting WR
;
; Wait for the sequence to be completed
;
for next 5 instructions
// Buffer of data to write
// Initialize NVMCON
// Initialize PM Page Boundary SFR
// Initialize lower word of address
// Write to address low word
// Write to upper byte
// Increment address
 2011 Microchip Technology Inc.